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Veta sus

Zostrojte  ABC ak je dané: b = 6 cm, c = 5 cm, = 60°. Veta sus. a. C leží na polpriamke AX, ktorá je ramenom uhla BAX. k. a. b = 6 cm. Teda musí platiť: C. Î. AX. Ç. k. = 60°. A. c = 5 cm. B. Dané: b = 6 cm c = 4 cm  = 60° Úloha:  ABC. Rozbor.

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Veta sus

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  1. Zostrojte  ABC ak je dané: b = 6 cm, c = 5 cm, = 60°. Veta sus

  2. a • C leží na polpriamke AX, • ktorá je ramenom uhla BAX k a b = 6 cm Teda musí platiť: C Î AX Ç k = 60° A c = 5 cm B Dané:b = 6 cmc = 4 cm  = 60° Úloha: ABC Rozbor Vieme zostrojiť: |AB| = c = 5 cm Hľadáme: C Náčrt: X C - C je od bodu A vzdialený 5 cm, leží na kružnici k; k( A; 6 cm)

  3. 4. C; C  AX  k k Konštrukcia: Skúška správnosti: Odmeraním dĺžok strán a daného uhla sa presvedčíme, že zostrojený trojuholník spĺňa podmienky úlohy. 1. AB; |AB| = 5 cm 2.  BAX; | BAX|= 60° =  3. k; k( A, 6 cm) 5.  ABC X Pozn.: Trojuholník sme zostrojili konštrukciou z dvoch strán a z uhla, ktorý tieto strany zvierajú. ( skrátene sus) C A B

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